Street indicator or annunciator



March 2 1926.

J. L. SCROGGINS STREET INDICATOR OR ANNUNCIATOR Filed Dec. 11, 1920INVENTOR Patented Mar. 2, 13235,

UNITED STATES 1,575,511 PATENT OFFICE.

JA ES L. scnoeerns, OFALHAVMBRA, CALIFORNIA.

STREET INDICATOR R ANNIl'NGIATOR.

Application filed December 11, 1920; Serial naazeeve.

To all whom it may concern Be it known that 1, James L. SCROGGINS, acitizen of the United States. residing at Alhambra, in the county of LosAngeles and State of Californiayhave invented new and usefulImprovements in Street Inch-- cators or Annunciators, of which thefollow ing is a specification.

This invention relates toimprovements in street indicators orannunciators for street cars and more particularly to improvements inthe street indicator or annunciator as disclosed in Letters Patent1,350,038 issued August 17, 1920.

An object of the inventionis to provide means for positively arrestingmovement of the indicia working web at predetermined intervals toprevent its moving too far upon each operation, and, thereby insuringproper exhibiting of each station indicating sign.

Other objects of the invention will appear in the following detaileddescription and in the accompanying drawings wherein Fig. 1 is a sectionshowing partsin eleva- 1 tion through the improved street indicator orannunciator.

Fig. 2 1s a transverse vertical section through the improved indicatoror annun- The roller 2 has an energy storing structure 5, 'ireferablycomprising a coil spring connected thereto, the function of which ismore specifically disclosed in the Letters Patent No. 1,350,038.However. in the present embodiment of the invention the energy storingstructure 5 is connected to the shaft 6 which carries the roller 2 by agear 7 and pinion 8. j

" The lower roller is rotated for unwinding the web 4.- therefrom orwinding it there- .on, by the operation of the solenoid 9 the centralarmature 10' of which has an angle lever 11 pivotally connected thereto.The lever l is pivoted at i s el ow t a suitable supporting bracket asshown at 12 and it engages beneath a transversely extending lip 13formed upon the sliding bar 14. The bar 1 1 is slidably supported by asuitable guide 15 and its lower end is pivotally connected to pawls 16and 17 which co-act with a.

ratchet 18 mounted upon the shaft 19 which I is connected to the rollercarrying shaft 20 by a gear 21 2111(1 13111101122.

, As clearly shown in Fig. 2 of. the drawing the pawls 16 and-'17areopposit'ely disposed, and are adapted torotate the'shaft 19 inopposite directions when they are moved into operative relation with theratchet 18 by operation of the lever 23. The lever ,23 is connected tothe pawls 16 and 17 by suitable links24. so as to permit movement ofeither 'of the pawls into operative position, de pending upon thedirection of movement of the lever 23. If so desired the lever 23 may bemoved into a neutral position at which, .time both ofthe pawls 16and17are held out of operative relation withtho ratchet 18 and the shaft 20and roller 3 carried thereby, may beinannally rotatedby means of thethumb screw to manually wind the web 41 v upon the roller or unwind ittherefrom as desired. To prevent movement of the web 4 to far upon eachoperation thereof under the energizing of tllQSOlGIiOld 9, ,a cam 25 ismounted upon the shaft20 and is provided .with circumferentially spacednotches 20 .in which the tongue 27, formed upon the escapement lever 28,is adapted to engage,

for instantly arresting rotation of the roller 3 andconsequently.permitting accurate ad- .justment of the web 1 to bring thestation indicating sign in proper alignment with the exhibiting window.pivotallymounted upon a stud 29 and a lateral projection 30 is carriedby the guiding bar 14 and engages beneath, a pawl 31 car ried by theescapement lever 28 for arrest-' The lever 28 is ing the lever to movethe tongue 27 out. 1.

of one of the notches 26 to permit rotation of the shaft 20 and roller3. Yieldable engagement between the projection 30 and lever 28 is had bymeans of the pawl 31 which is pivotally connected as shown at 32 to theescapement lever 28 and is held in operative relation to the projection30 by a flat spring 33. A return spring 34- is connected to theescapement lever'28 for returning it to move the tongue 27 intosubsequent i-"io eh 26 a th g ide 1 m ws downwardly to its normalposition under action of its return spring 3.5. .Should the tongue 27 bereturned prior to the positioning of a notch 26 in tongue receivingposition the tongue will engage and ride over the perimeter of thecam-disc 25. moving into the first notch 26, and thereby ar-.

resting rotation of the shaft 20 and roller 3.

The upward movement of the guiding bar 14-, through thecontactingengagement of the projection 30 with the pawl 31, will raisethe lever 28 to bringits tongue 27 out .of one of the notches 26 in thecam 25. lVhen the bar 14 travels upwardly a against the inclined face ofthe pawl and when the said projection 30 is brought directly below thesaid pawl the spring 33 will swing the pawl to arrange the under facethereof over the said projection 30.

The conductors for the solenoid are indicated bythe numerals 50.

The energizing of the solenoid 9 may be controlled by a suitable circuitclosing device of any approved construction as described in LettersPatent 1,350,038 and when the solenoid 9 is energized the movement ofits central armature 'lO will rock the angle lever 11. The rocking ofthejlever '11 will move the sliding bar 14 which will in turn operatethe pawls 16 and '17 and ratchct 1 for rotating theshaft 1-9, ITherotaftion of the shaft 19 ,will'tlirough themedium of the pinion 22and gear 21 rotate the i'o'llercarrying shaft 20-for moving-the web 4 tobring the proper signinto exhibition. Excessive rotation of the webcarrying rollers is prevented by means of the cam disc 25, tongue-27a-nd' escapement leveras heretofore described;

It is, of course, to he understood that the invention may be constructedin various other manners and the parts associated in different relationsand, therefore, I do not desire .to be limited many manner except as setforth in. the .c aims hereunto appended. c

Having thus described my invention what I claim is:

1. A street annunciator comprising a pair of web carrying rollers, aratchet operatively connected to one of said rollers, a

pair of oppositely disposed pawls for engagement withrsaid ratchet, amanually operatedlereri for shifting said pawls to move slidable barlongitudinally, means associated with the roller to which said ratchetisconnected for limiting the rotating movement of the roller, and energystoring means associated with the Web carrying roll er other than theone to which saidratchet :is connected. c

A street annunciatorcomprising a pair ofuweb carrying rollers, a ratchetopera- :tively-oonnected to one of said rollers, a pair of oppositelydisposed pawls for en gagement with said ratchet, means for shift- 'ingsaid pa-wlsto move one or the other of them into engagement With saidratchet, a slidable bar for operating the pawls to in turn rotate saidratchet, a transversely K- tending lip carried by said bar, a pivotal.-

ly mounted .bell crank lever having one end engaging said lip, asolenoid connected to said lever for operating the .same to impartmovement to the slidable bar, a cam rotated through'the'action of thebar, having spaced notches therein, an escapement lever-having a tongueto engage said notches,

and 'means operatively connecting the bar and lever tointermittingly.engage the tongue with the notches.

In testimony whereof I aflix my signa-' ture.

JAMES L. sonoeo-ins.

